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Can PVFS tolerate server failures?

April 26, 2017failures pvfs server tolerate

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Can PVFS tolerate server failures?

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Yes. We currently have a recipe describing the hardware and software needed to set up PVFS in a high availability cluster. Our method is outlined in the `pvfs2-ha.{ps,pdf}’ file in the doc subdirectory of the PVFS distribution. This configuration relies on shared storage and commodity “heartbeat” software to provide means for failover. Software redundancy offers a less expensive solution to redundancy, but usually at a non-trivial cost to performance. We are studying how to implement software redundancy with lower overhead, but at this time we provide no software-only server failover solution.